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Abstract:

The present disclosure relates to a perimetric protection system for
buildings undergoing construction including at least two masts (1) spaced
from one another and each formed by two vertical U-profiles (1); a
horizontal platform (3) supported on at least two horizontal beams (300)
attached to the masts by means of first attachment elements or anchors
(130). The system further comprises: at least two inclined beams (100)
parallel to one another, which are attached: to the masts (1) by means
of at least two second attachment elements (110) forming a first angle
(α); to the horizontal beams (300) by means of at least two third
attachment elements (310) forming a second angle (β); and, the at
least two inclined beams (100) having a free end (100a) in the third
attachment elements (310), such that their height is greater than the
height of the horizontal platform (2); an inclined protective panel (120)
attached to said at least two inclined beams (100).

Claims:

1. A perimetric protection system for a building under construction
comprising: at least two vertical masts spaced from one another and each
formed by two U-profiles; and a loading platform supported on at least
two horizontal beams attached to the masts by means of first attachment
elements; wherein the loading platform is included within the perimetric
protection, the loading platform at one end being fixed to the at least
two masts and at the other end being fixed to at least two inclined
projecting beams on which protective panels are assembled.

2. The perimetric protection system according to claim 1, further
comprising: at least two inclined projecting beams parallel to one
another; the at least two inclined beams being attached to the masts by
means of at least two second attachment elements forming a first angle;
the at least two inclined beams being attached to the horizontal beams by
means of at least two third attachment elements forming a second angle;
and, the at least two inclined beams having a length such that after the
third attachment elements said inclined beams have a free end the height
of which exceeds the height of the horizontal platform; the system
further including: protective panels attached to said at least two
inclined beams.

3. The perimetric protection system according to claim 2, wherein the
first angle and the second angle are fixed, and the second attachment
elements and the third attachment elements are fixed attachments.

4. The perimetric protection system according to claim 2, wherein the
first angle and the second angle are variable, and the second attachment
elements and the third attachment elements are articulated attachments.

5. The perimetric protection system according to claim 1, wherein said at
least two masts are formed by two vertical U-profiles open towards
opposite lateral sides.

6. The perimetric protection system according to claim 1, wherein said at
least two inclined beams are each formed by two attached U-profiles open
towards opposite sides.

7. The perimetric protection system according to claim 1, wherein the
masts, the inclined beams and the horizontal beams have alignments of
circular holes and slit holes.

8. The perimetric protection system according to claim 1, further
comprising vertical protective panels attached to the at least two masts.

Description:

TECHNICAL FIELD OF THE INVENTION

[0001] The present invention is comprised in the technical field of
construction and, more particularly, in the sector of the perimetric
protections for buildings undergoing construction.

BACKGROUND OF THE INVENTION

[0002] The proliferation of very tall buildings, such as skyscrapers, in
large cities has considerably improved the systems for their construction
both in terms of efficiency and safety in recent years. The need to work
safely at great heights and to continue working even with adverse
meteorological conditions (wind or rain) has made it necessary to install
in the periphery thereof, attached to the formworks, perimetric
protections which safeguard the physical integrity of workers, as well as
the safety of pedestrians and vehicles close to the work site which could
be affected by objects and materials from the site undergoing
construction.

[0003] Historically, these protections were initially built using simple
rails which were fastened to the formworks and which, once the job on
that floor was finished, were moved to the following floor under
construction. However, the concept of protection currently followed seeks
to completely cover the periphery of the work site with canvases, boards,
panels, meshes, etc. These perimetric protections have been used for a
long time and there are very different systems for their assembly and
installation at the work site, although in all cases they require a
support structure fixed to the formworks, to which structure the
protective elements are fastened, i.e., the panels, meshes and the like.
In this version, as occurred with the protective rails, once the work was
finished on the floor or floors covered by the perimetric protection, the
elements forming said protection, such as the metal support structure and
the protective panels and meshes, had to be moved manually by means of a
crane to the upper floors that had to be protected.

[0004] Self-climbing perimetric protections have been developed in recent
years, which have means for being moved up and down, such that they are
placed on the floors that must be perimetrically protected. Examples of
such self-climbing protections can be seen in patent documents WO
2004/020766, WO 2007/036300 and in European patent application EP
10382052.8.

[0005] During the construction of a building or the like it is common to
use a loading platform; in such case, upon placing such platform in the
existing self-climbing formwork systems, the loading platform is outside
the perimetric protection and it becomes necessary to specifically
protect it.

DESCRIPTION OF THE INVENTION

[0006] The object of the present invention is a perimetric protection
system according to claim 1. Preferred embodiments of the system are
defined in the dependent claims.

[0007] To solve the drawbacks of current perimetric protection systems in
which the loading platforms are outside the perimetric protection and
accordingly require their own protective means, such as additional rails,
the present invention proposes adding an inclined projecting structure
such that the loading platform is included within the internal angle
formed by the vertical masts supporting the perimetric protection and the
inclined projecting structure, to which projecting structure the
protective panels are assembled, the loading platform being fastened at
one end to the vertical masts and at the other end to the inclined
projecting structure.

[0008] Thus, according to the present invention, the perimetric protection
system for buildings undergoing construction comprises:

[0009] at least two vertical masts spaced from one another and each of
these masts formed by two profiles;

[0010] a horizontal loading platform, which can have a variable width
depending on needs, supported on at least two horizontal beams attached
to the masts by means of first attachment elements or anchors.

[0011] A first aspect of the present invention relates to the system
further comprising:

[0012] at least two inclined projecting beams parallel to one another;

[0013] the at least two inclined projecting beams being attached to the
masts by means of at least two second attachment elements forming a first
angle α;

[0014] the at least two inclined projecting beams being attached to the
horizontal beams by means of at least two third attachment elements
forming a second angle β, which will normally be π/2-α;
and,

[0015] the at least two inclined projecting beams having a free end which
amply exceeds the level of the loading platform to create an ample and
sufficient protective area which includes the loading platform itself;

the system further including:

[0016] protective panels attached to said at least two inclined beams.

[0017] Said vertical masts can each be formed preferably by U-profiles
open towards opposite lateral sides. Between the U-profiles there are
blocks serving to support the masts in the respective support heads
anchored to the floors, as well as to actuate the hoisting means.

[0018] Said at least two inclined projecting beams are each preferably
made up of two attached U-profiles open towards opposite sides.

[0019] The second attachment elements and the third attachment elements
can be fixed attachments and, in such case, the first angle α and
the second angle β are also fixed.

[0020] It is also possible for said first and second attachment elements
to be articulated attachments; in such case, the first angle α and
the second angle β are variable.

[0021] The system of the invention can further comprise a reinforcing
tensioning device, if necessary, between the at least two horizontal
beams and the free end of the at least two inclined beams.

[0022] The system preferably also comprises vertical protective panels
attached to the at least two masts.

[0023] By means of the perimetric protection system of the invention, in
addition to allowing the loading platform to be comprised within the
perimetric protection, other important effects and advantages are
achieved both at the operative level and the commercial level. The first
is that since each pair of masts and inclined projecting beams form a
perimetric protection module and since the perimetric protection modules
can be positioned one after the other with virtually nil or very little
separation between adjacent masts, a continuous loading platform, i.e., a
continuous passageway along the entire perimeter of the building
protected by the perimetric protection, can be formed.

[0024] Another advantage, which in this case is of commercial and/or
advertising interest, is based on the fact that since the perimetric
protection is inclined and projecting, the protective panels assembled
thereon can be used as advertising support that will be visible to
passers-by or from places located at a level lower than the perimetric
protection.

[0025] The perimetric protection system of the invention can be
self-climbing of the type described in European patent application EP
10382052.8.

[0026] As can be seen, the system according to the present invention is
simple, can be easily hoisted, adaptable without major changes to
different work sites and mode up of combinable modules making the system
very versatile.

BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To complement the description that is being made and for the
purpose of aiding to better understand the features of the invention
according to a preferred practical embodiment thereof, a set of drawings
is attached as an integral part of said description, in which the
following has been depicted with an illustrative and non-limiting
character:

[0028]FIG. 1 is a side view of an embodiment of a perimetric protection
system according to the present invention.

[0029] FIG. 2 is a detailed view of a first embodiment of the fixed
attachment between mast and inclined beam.

[0030] FIG. 3 is a detailed view of a first embodiment of the fixed
attachment between inclined beam and horizontal beam.

[0031] FIG. 4 is a detailed view of a second embodiment of the articulated
attachment between mast and inclined beam.

[0032] FIG. 5 is a detailed view of a second embodiment of the articulated
attachment between inclined beam and horizontal beam.

[0033] FIG. 6 is a detailed view of a possible attachment between mast and
horizontal beam.

DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION

[0034]FIG. 1 shows a preferred embodiment of the system according to the
present invention, comprising a pair of vertical masts 1 (since it is a
side view, FIG. 1 only shows one of them) which are supported by heads 4
anchored to the floors 5 of a building. A horizontal loading platform 3,
having variable width, which is supported on horizontal beams 300 is
assembled on these masts 1; these horizontal beams 300 are attached to
the masts 1 by means of first attachment elements or anchors 130.
Vertical protective panels 2 are assembled on the masts 1.

[0035] The masts 1 can be, for example, of the type described in European
patent application EP10382052.8, i.e., formed by U-profiles attached at
their central branches, between which U-profiles blocks are arranged for
supporting the masts in the guiding and supporting heads 4, and which
blocks also serve to hoist the masts by means of the hoisting means, such
as hydraulic springs.

[0036] The heads 4, which allow guiding and supporting the masts 1, are
anchored to the respective floors 5, being able to be a front anchor to
the floor as shown in FIG. 1, or an anchor superimposed on the floor (not
depicted).

[0037] According to the preferred embodiment shown in FIG. 1, the
perimetric protection system further includes inclined projecting beams
100 parallel to one another (only one of them is shown). These inclined
beams 100 are attached:

[0038] to the masts 1 by means of second attachment elements 110 forming a
first angle α;

[0039] to the horizontal beams 300 by means of third attachment elements
310 forming a second angle β,

and they have a length such that after the third attachment elements 310
said inclined beams have a free end 100a the height of which exceeds the
height of the horizontal platform 3.

[0040] Protective panels 120 are coupled to the inclined beams 100 such
that there is enough space to place and assemble said loading platform 3
between the floors of the building under construction and the mentioned
inclined beams.

[0041] These inclined beams are assembled angularly between the masts 1
and the horizontal beams 300, forming a first angle α with the
masts 1 and a second angle β with the horizontal beams 300
supporting the platform 3.

[0042] According to the first embodiment shown in FIGS. 2 and 3, these
inclined beams 100 are attached to the masts 1 by means of fixed anchors
110a, the first angle α being fixed, and they are attached to the
horizontal beams 300 by means of fixed anchors 310a, the second angle
β also being fixed.

[0043] The second angle β is normally π/2-α.

[0044] According to a second possible embodiment of the invention shown in
FIGS. 4-6, the attachment between each inclined beam 100 and the
corresponding mast 1 and horizontal beam 3 is by means of an articulated
attachment.

[0045] Therefore FIG. 4 shows a detail of how the inclined beam 100 is
attached at its lower part to the mast 1 by means of an attachment
element 110b. This attachment element 110b includes an articulation 110b1
which allows varying the first angle α, as well as respective
attachment parts 110b2 and 110b3 which allow the attachment with the
regulation thereof to the mast 1 and to the inclined beam 100,
respectively.

[0046] FIG. 5 similarly shows a detail of how the inclined beam 100 is
attached at its upper part to the horizontal beam 300 by means of an
attachment element 310b. This attachment element 310b has an articulation
310b1 which allows varying the second angle β, as well as respective
attachment parts 310b2 and 310b3 which allow the attachment with the
regulation thereof to the horizontal beam 300 and to the inclined beam
100, respectively.

[0047] FIG. 6 shows a detail of a possible embodiment of the attachment
part 130 perpendicular between the mast 1 and the horizontal beam 300.

[0048] Like the masts 1, these inclined beams 100 which are angularly
assembled are made up of two U-profiles, though somewhat smaller (though
they could also be identical).

[0049] As can be seen in the details shown in FIGS. 2-6, the masts 1, the
inclined beams 100 and the horizontal beams 300 have a series of
alignments of circular holes 8 and slit holes 9 for their connection by
means of the corresponding screws and/or pins.

[0050] The same occurs with the attachment and articulation elements,
which also have those alignments of circular holes and slit holes,
facilitating their assembly in the beams.

[0051] In view of this description and set of drawings, the person skilled
in the art will understand that the embodiments of the invention that
have been described can be combined in many ways within the object of the
invention.